Humidity for both hatching and eggs

I have just one incubator, and staggered eggs. Wed. I had a chick zipping and was almost "shrink wrapped". Because I am a newbe and the Maran eggs are dark, I unable to candle my Maran eggs. I didn't realize that he was 'due', so had the humidity at 45% for the eggs.
I wet him down and helped him out and now he is fine.
But what will happen to my younger eggs if I keep the humidity up to 65% for the ones due to zipp?
Please help a.s.a.p. as this is day 21 for 3 of my eggs, and day 1-15 for the eggs. How should I do this?